SUN HYDRAULICS
DNDCXTE512

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Sun Hydraulics directly.***
The Sun Hydraulics DNDCXTE512 (Material Number: DNDCXTE512) is a direct acting, solenoid-operated, 4-way, 3-position spool valve designed for efficient hydraulic flow control. This valve is spring-centered to a neutral position, ensuring stability in its default state. When coil A is energized, the flow transitions from port 3 P to port 2 A and from port 4 B to port 1 T. Conversely, energizing coil B redirects the flow from port 3 to port 4 and from port 2 to port 1. The solenoid tube assembly is robustly fatigue-rated for service pressures up to 5000 psi (350 bar), allowing it to perform reliably under high-pressure conditions. This valve's direct actuation means it operates without requiring a minimum hydraulic pressure, making it versatile for various applications. In differential flow circuits, directing higher return flows through specific ports optimizes performance. The cartridge design includes EPDM seals suitable for phosphate ester fluid systems; however, these seals are vulnerable to petroleum-based substances. Its wet armature design enhances efficiency but requires consideration of fluid compatibility due to potential heat exposure during prolonged coil energization. The DNDCXTE512 offers diverse coil termination and voltage options, with some providing surge protection and environmental ratings up to IP69K. Coils are interchangeable within Sun Series 1 products and can be mounted in either direction on the tube. The high-efficiency solenoid design ensures reliable valve shifting with significant spool actuating force per watt expended. With a cavity specification of T-31A and a capacity of up to 5 gpm (20 L/min), this valve features quick response times typically around 50 ms and can handle switching frequencies up to 15,000 cycles per hour. It incorporates Sun's floating-style construction, minimizing potential internal binding due to installation torque or machining variations.